Spain

Sa Calobra Road, (officially designed MA-2141), with a length of 13 km only, and located in Majorca Island, Spain, is one of the most scenic drives in the world. Imagine dropping a long piece of wet spaghetti on the floor. The pattern it makes looks something like what the road looks. Snaking through the rocky landscape of the island, the eight-mile stretch of tarmac is also steep. Built in such a way as to avoid using tunnels, a fair proportion of the road has a gradient of more than 7%. If you really want a challenge, try tackling it by bike.

Carretera del Faro de Punta de Teno is the name of the sharply winding and precipitous ascent in a steep and narrow zig-zag road located in Tenerife, the largest and most populous island of the seven Canary Islands, Spain. There’s a high danger of earth-falling. It was the location of the opening scene in Fast and Furious 6.

Pico del Veleta is a high mountain pass at an elevation of 3,369 metres (11,053ft) above the sea level, located in Sierra Nevada, a mountain range in the region of Andalusia, provinces of Granada and Almería in Spain. It's one of the highest mountain roads of Europe.At an altitude of some 3,000m road conditions become significantly worse.

Alto de l’Angliru (also known as Gramonal) is one of the most famous mountains passes in the sport, and one of the most demanding: 12.2 kilometers at an incredible 10.2%, grading out at a maximum of 23.5% not far from the top. This mountain pass is located in in Asturias, near La Vega-Riosa, in northern Spain. This is a road that some professional cyclists have even refused to climb due to how rough it is.

GC-600 is the name of the sharply winding and precipitous ascent in a a steep and narrow zig-zag road winding uphill to Pico de las Nieves, the highest peak of the island of Gran Canaria, Canary Islands, Spain. Its height is 1,949 metres (6,394 ft) above the sea level. The climb is very steep, with sections up to 23%.

Turó de l'Home is a high mountain pass at an elevation of 1,712 m (5,617 ft) located in the Montseny mountain range, in Catalonia, Spain. It was the site of a Transair Douglas Dakota accident in 1959, with 32 fatalities. The climb is really wild, with sections up to 15%.

Sierra de Carrascoy is a mountain peak at an elevation of 1,066 m above the sea level, located within the Parque Regional Sierra de Carrascoy y El Valle, in the Region of Murcia, an autonomous community of Spain located in the southeast of the state. The climb is brutal, with sections up to 20%.

Puerto de Velefique (or Alto de Velefique) is a high mountain pass, at an elevation of 1,820m above the sea level, located in Sierra de Los Filabres, in Almería Province, Andalusia, Spain. The pass is traversed by the asphalted AL-3102 road.

Extreme dirt track with a length of 10.5km, going to Cofete Beach, in the western part of the Jandia peninsula, in Fuerteventura, Canary Islands, Spain. The history of the road is the subject of several conspiracy theories, often involving Nazis.

La Bola del Mundo, (or Guarramillas pass), is a horrific high mountain pass at an elevation of 2.265m (7,431ft) above the sea level, located in the Sierra de Guadarrama (mountain range of the Central System), on the edge of the Spanish provinces of Madrid and Segovia. It's one of the highest mountain passes of Spain.

Cap de Formentor lighthouse is a spectacular lighthouse at an elevation of 384m above sea level located in the eastern end of Majorca's Formentor peninsula, on the northernmost point of the Balaeric Island Majorca in Spain.

Puerto de Ibañeta is a mountain pass at an elevation of 1,057 m (3,468 ft) above the sea level, located in the Pyrenees near the border between France and Spain. The pass is traversed by the N135 road.

San Miguel de Áralar is a sanctuary with more than a thousand years of history, at an elevation of 1,220m above the sea level, located in the province and autonomous community of Navarre, northern Spain. The road to reach the summit is called NA-2410.

Rat Penat is a spectacular mountain pass at an elevation of 600m above the sea level, located in the Garraf Massif, mountain range of the Catalan Coastal Range, Catalonia, Spain. The asphalted road to reach the summit includes grades of 23%.

Puig Major is a mountain pass at an elevation of 1,445 m (4,741 ft) above the sea level, located in the Serra de Tramuntana, on the Spanish island of Mallorca. The top of this mountain is off limits as a military zone and corresponding permission by the Air Force will be required.

Cuitu Negru is a high mountain pass at an elevation of 1,858m above the sea level, located in the municipality of Lena, in Asturias, Spain. The wild, remote and steep road to climb the summit was asphalted in 2012, to be a final stage of Vuelta a España race.

Located in southwestern Europe, Spain is a very mountainous country. It is perhaps most well-known for its sandy beaches, but Spain is the most mountainous country in Europe after Switzerland, and climbing to the top of some of the country’s highest peaks will reward you with the most spectacular sights ever.

HU-631 is a challenging high mountain road located in the Ordesa y Monte Perdido National Park, in the Sobrarbe region, province of Huesca, Spain. During some periods of the year, the road is just one direction. It still remains an adrenaline-pumping journey and is definitely not for the faint of lungs, heart, or legs. It is narrow, so keep the speed down and be ready to move over and make room for oncoming vehicles.

Port d’Aula is an international high mountain pass at an elevation of 2.260 m (7,414 ft) above the sea level, located in the Pyrenees, a range of mountains in southwest Europe that forms a natural border between France and Spain. It's one of the highest mountain passes of Spain.

Hoya de la Mora is a high mountain pass, located in Granada, in the autonomous community of Andalusia (in Southern Spain) within the Sierra Nevada Park, at an elevation of 2.550m (8,366ft) above the sea level, on the A395 road. It's one of the highest mountain passes of Spain.

Col du Pourtalet is an international high mountain pass at an elevation of 1.794 m (5,886 ft) above the sea level, situated on the Pyrenees, a range of mountains in southwest Europe that forms a natural border between France and Spain. The pass offers the most beautiful views of the Ossau Valley.

Ma-1131 is one of the narrowest roads of the world. Located on the island of Majorca, in Spain, this tortuous route should not be attempted by those who don't know how to reverse. It’s a very narrow high shelf road intimidating to beginners, or those not fond of heights. Some buses have to try twice to make some of the turns.

Puerto de las Palomas is a mountain pass, at an elevation of 1.357m above the sea level, located in Andalusia, Spain. The road over the pass, inside the Sierra de Grazalema Natural Park, links Grazalema and Zahara de la Sierra villages. Access from Zahara de la Sierra is performed by a road very winding and with steep slopes.